diff --git a/VERSION b/VERSION
index 3e3c2f1..7f8d85c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.1
+2.1.2-dev
diff --git a/python/adapters/ponsim_olt/VERSION b/python/adapters/ponsim_olt/VERSION
index 3e3c2f1..7f8d85c 100644
--- a/python/adapters/ponsim_olt/VERSION
+++ b/python/adapters/ponsim_olt/VERSION
@@ -1 +1 @@
-2.1.1
+2.1.2-dev
diff --git a/python/adapters/ponsim_onu/VERSION b/python/adapters/ponsim_onu/VERSION
index 3e3c2f1..7f8d85c 100644
--- a/python/adapters/ponsim_onu/VERSION
+++ b/python/adapters/ponsim_onu/VERSION
@@ -1 +1 @@
-2.1.1
+2.1.2-dev